Magnetic resonance and ultrasound imaging of a patient with carotydinia.

Carotydinia, also called transient perivascular inflammation of the carotid artery (TIPIC) is a rare diagnostic entity related to an inflammation over the carotid bifurcation region. Despite the confusion about the definition of this term, neck pain remains the main symptom. Several articles revealed the relevance of imaging in the diagnosis of this disease.

Primitive neuroectodermal tumor of the lumbosacral nerve plexus: A case report.

We report an uncommon case of primitive neuroectodermal tumor/ Ewing's sarcoma of the lumbar and sacral nerve plexus in a 17years old boy who presented with an intense pain in the lower back radiating to legs. Magnetic resonance imaging showed a soft tissue mass with thickening of lumbar and sacral spinal nerve roots (L5-S3 level), along with widening of the corresponding foramina. There was also posterior scalloping of L5/S1 vertebrae and invasion of the sacral bone.

Lipid-poor vertebral hemangioma mimicking a vertebral metastasis of cervical carcinoma.

Vertebral hemangiomas are classified into typical and atypical forms. On imaging, atypical forms may look like malignant lesions. The confrontation of data from different imaging modalities (MRI; CT; scintigraphy) facilitates the diagnosis.

A rare case of Fahr disease revealed by an epileptic seizure.

Fahr's disease is a rare neurodegenerative disorder, identified by bilateral and symmetrical intracerebral calcifications of mainly the basal ganglia. Patients often present extrapyramidal or neuropsychological symptoms. Seizure is one of the rarest manifestations that can reveal Fahr disease.

Posterior reversible encephalopathy syndrome (PRES): Should more attention be paid to the atypical forms?

Posterior reversible encephalopathy syndrome (PRES) is an uncommon, but important, pathology affecting primarily the posterior cerebral circulation. Typical imaging features include vasogenic edema involving the bilateral occipital and parietal lobes. We report 4 cases of atypical PRES: The first one is a 59-year-old woman with a medical history of diabetes and hypertension who presented a consciousness disorder.

Leptomeningeal Metastasis Mimicking a Subacute Epidural Hematoma: Case Report.

Leptomeningeal carcinomatosis is extremely rare in colorectal adenocarcinoma, its incidence is far less than 1%. The neurological symptoms are pleomorphic. The most common symptoms included Headache, ataxia, cranial nerve palsies, meningismus, focal weakness or numbness.

Second primary squamous cell carcinoma of nasal cavity after successful curative radiotherapy and chemotherapy of cancer of the cavum (UCNT).

After nasopharyngeal carcinoma treatment, secondary malignant tumors of the nasal cavities in the irradiated zone are extremely rare, with an estimated frequency of 0.15%-0.75%.

Autoimmune pancreatitis presenting as a pancreatic head mass.

The diagnosis of autoimmune pancreatitis (AIP) is often difficult as the main differential diagnosis is pancreatic head adenocarcinoma. Some clinical, radiological, serological and histological criteria help in guiding the diagnosis. The serum gamma-globulin IgG4 dosage is the most sensitive and specific marker.

Unusual presentation of gallbladder papillomatosis without bile duct involvement: A case report.

The papillomatosis is a very rare benign pathology diagnosed histologically with a significant potential for malignant transformation. We report a case a 60-year-old female without comorbidity present the gallbladder papillomatosis without involvement of the intra or extra hepatic biliary tract. The interest in knowing the radiological aspect of this pathology and make the early diagnosis in order to oriented treatment.

Metastasis frontal sinus from rectal adenocarcinoma: A rare case.

Metastatic tumors of the nasal cavity and paranasal sinuses are much less common than primary cancer in this location. The clinical symptomatology is not specific. We report a case of frontal metastasis of a 49-year-old patient treated for a rectal adenocarcinoma without other secondary localizations.

Pseudomyxoma pleurii: unusual location of a rare disease.

Pseudomyxoma peritonei with pleural extension is very rare. Dissemination in the pleural cavity can be trans diaphragmatic or hematogenous. Appendicular and ovarian mucinous tumors are the most often involved.

Low back pain indicative of psoas muscle metastasis and bronchopulmonary cancer.

Muscle metastases of bronchopulmonary cancer are rare, notably when they are revealing. They can affect all muscles of the body with a predominance of psoas, diaphragmatic and para-vertebral muscles. We report a case of psoas muscle metastasis revealing bronchopulmonary cancer in a 40-year-old patient with a long history of smoking (30 packs of cigarettes/year) presenting a chronic left low back pain with asthenia and weight loss (15 kg/year).